package com.wzl.mixed.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * 全局上下文
 *
 * @author wzl
 * @since 1.0, 2023/06/09 10:21
 */
@Component
@Slf4j
public class ApplicationContextUtil implements ApplicationContextAware {

    // 定义静态ApplicationContext
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        // 将框架加载的ioc赋值给全局静态ioc
        ApplicationContextUtil.applicationContext = applicationContext;
        log.info("==================ApplicationContext加载成功==================");
    }

    // 获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    // 通过name获取 Bean.
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    // 通过class获取Bean.
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    // 通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

}
